kernel: interrupt: create a generic interrupt API

Create a generic interface for drivers to make use of interrupt vectors.
This API should be platform-agnostic enough to allow any driver to make
use of virtually any interrupt vector on any CPU. On x86, the first 32
interrupts are set aside for CPU exceptions, and interrupt 128 is set
aside for system calls.

Signed-off-by: Danny Holman <dholman@gymli.org>

1 files changed, 3 insertions, 1 deletions

diff --git a/arch/i386/include/kernel/asm.h b/arch/i386/include/kernel/asm.h
index d692917..cc570c5 100644
--- a/arch/i386/include/kernel/asm.h
+++ b/arch/i386/include/kernel/asm.h
@@ -9,6 +9,8 @@
 
 #define COM_PORT        0x3F8
 
+#define MAX_ISR         256
+
 struct regs {
         uint32_t eax;
         uint32_t ebx;
@@ -95,7 +97,7 @@ void irq_stub_13(void);
 void irq_stub_14(void);
 void irq_stub_15(void);
 
-void syscall_stub(void);
+void isr_stub_128(void);
 
 void aquire_lock(int *lock);
 void release_lock(int *lock);